Question

Simplify: (4root3-6root5)+(root3+root5)

Answer 1

$(4 \sqrt{3} - 6 \sqrt{5} ) + ( \sqrt{3} + \sqrt{5} )$
$= 4 \sqrt{3} - 6 \sqrt{5} + \sqrt{3} + \sqrt{5}$
$= 5 \sqrt{3} - 5 \sqrt{5}$
$= 5( \sqrt{3} - \sqrt{5} )$
$or...$
$= - 2.52 \: \: \: \: \: (approximate \: value)$

Answer 2

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